Ocserv is an open-source SSL VPN server that is commonly used to provide secure remote access to corporate networks. In this tutorial, we will go through the steps needed to install Ocserv on Kali Linux.
Before we start, make sure you have the following:
Open the terminal and run the following command:
sudo apt-get update
This command will update all the software packages on your system.
Next, install the required libraries by running the following command:
sudo apt-get install build-essential pkg-config libgnutls28-dev libwrap0-dev libpam0g-dev libseccomp-dev libreadline-dev libnl-route-3-dev
This command will install all the necessary libraries that Ocserv requires to function.
Now we will download and extract Ocserv. Run the following commands:
wget ftp://ftp.infradead.org/pub/ocserv/ocserv-0.12.3.tar.xz
tar -xvf ocserv-0.12.3.tar.xz
This command will download the latest version of Ocserv and extract it to a directory called ocserv-0.12.3.
Navigate to the directory where Ocserv is extracted, and then run the following commands:
cd ocserv-0.12.3/
./configure
make
make install
These commands will configure, compile, and install Ocserv on your system.
After installing Ocserv, you need to configure it to work with your system. First, create a directory for Ocserv configuration files by running the following command:
sudo mkdir /etc/ocserv
Next, copy the sample configuration file to the new directory you just created by running:
sudo cp ./doc/sample.config /etc/ocserv/ocserv.conf
Now edit the configuration file with the editor of your choice. For this tutorial, we will use nano:
sudo nano /etc/ocserv/ocserv.conf
Configuration options you may want to change include:
auth: Defines the authentication method to be used. By default, PAM is used.ipv4-network: Defines the IPv4 address range for the VPN.ipv6-network: Defines the IPv6 address range for the VPN.route: Defines the route to push to the client when connecting to the VPN. You can add multiple routes.After editing the configuration file, start Ocserv by running the following command:
sudo ocserv -c /etc/ocserv/ocserv.conf
This command starts the Ocserv SSL VPN server.
In this tutorial, we went through the steps needed to install Ocserv on Kali Linux. With Ocserv installed, you can now provide secure remote access to your corporate network.
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